Here's a tip on how to save money on gasoline:
Use GPS: Computerized travel directions from GPS devices or smartphones can help find efficient routes, even among multiple destinations. That can save time, hassle and gas. If you don't have a device, use a Web site such as Maps.google.com. Of course, plotting a route by hand works, too, using a folding map or road atlas. Several devices and Web sites also alert you to traffic jams, a gas-mileage killer.